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Research on Photosynthetic Physiological Characteristics of Armeniaca sibirica for Different Provenances(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年09
Page:
35-41
Research Field:
Publishing date:

Info

Title:
Research on Photosynthetic Physiological Characteristics of Armeniaca sibirica for Different Provenances
Author(s):
LI Jiyang; HE Yanhong; BAI Yu’e; TIAN Youliang
(Forestry College，Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010019)
Keywords:
Armeniaca sibirica; provenance; photosynthetic rate; transpiration rate; adaptation
PACS:
-
DOI:
10.11937/bfyy.201609009
Abstract:
Using LI-6400 mobile photosynthesis meter，the daily photosynthesis rate process variation in natural condition of 12 seed sources of Armeniaca sibirica provided by Armeniaca sibirica germplasm bank of Inner Mongolia Forest Fine Variety Breeding Center was studied.Then the change of photosynthetic physiological characteristics and adaptability to the environment of Armeniaca sibirica were studied.The results showed that photosynthetic rate，stomatal conductance and transpiration rate diurnal variation in three types of unimodal，bimodal and many peak，the first peak average between 10:00—12:00.Besides Liangcheng provenance,various source photosynthetic rate of eastern area was greater than that of western area，Kezuohouqi was the highest（4.772 5 μmol?m-2?s-1），there was no difference between east and west provenance of stomatal conductance and transpiration average rate.The daily mean value of photosynthetic rate，stomatal conductance and transpiration rate in Wanjiagou was lower than the others，they were 1.665 5 mmol?m-2?s-1 ,0.041 5 mmol?m-2?s-1 ,0.817 8 mmol?m-2?s-1 ,respectively.Based on water use efficiency of size,12 provenance could be divided into three categories Keqi，Kezuohouqi，Alukeerqin for high water use efficiency；Zhaluteqi,Keyouzhongqi,Zhalaiteqi,Balinzuoqi,Wulanhaote for medium water use efficiency；Wulashan，Liangcheng,Aohan，Wanjiagou for low water use efficiency.Keqi was the highest（4.180 7 mmol/mol）and Wanjiagou was the lowset（1.893 5 mmol/mol）.According to the photosynthetic capacity，water consumption and water use efficiency comprehensive analysis pointed out，Keqi was the first place for cultivation in Hohhot，follow by Kezuohouqi and Alukeerqin，of that had higher photosynthetic capacity，less water consumption，they were able to adapt to the dry weather conditions.The study provided the basis for Armeniaca sibirica introduction，breeding and cultivation in the area.

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Last Update: 2016-07-04